Sudoku Solver: Solve Any Puzzle Instantly

Our sudoku solver is a powerful tool that can solve any valid sudoku puzzle in seconds. Whether you're stuck on a newspaper puzzle, want to verify your own solution, or are curious about the solving process, this tool has you covered.

How to Use the Solver

1. Enter Your Puzzle: Click on any cell in the grid and type the given numbers from your puzzle. Use the number pad or your keyboard.
2. Solve Instantly: Click Solve to see the completed grid in one step.
3. Step by Step: Prefer to learn? Click Step by Step to watch the solver work through the puzzle one logical deduction at a time. Use the navigation controls to move forward and backward through each step.
4. Play the Puzzle: If the puzzle is valid, click Play to switch to game mode and solve it yourself with full game features like notes, hints, and a timer.

What the Solver Can Do

• Validate Puzzles: The solver will tell you if a puzzle has no solution or has multiple solutions.
• Show Logical Steps: The step-by-step mode reveals the exact techniques used at each stage — from naked singles to more advanced strategies.
• Handle Any Difficulty: From easy newspaper puzzles to the hardest expert-level grids, the solver handles them all.

Tips

• Double-Check Your Input: A single mistyped number will produce an incorrect solution or an error. Verify your entered digits carefully.
• Use Clear Board to start fresh if you need to enter a different puzzle.
• Use Undo if you make a mistake while entering digits — no need to start over.

Enter your puzzle above and let the solver do the rest!